Abstract

Strong 10-micron line emission from (C-12)(O-16)2 in the upper
atmosphere of Venus has been detected by heterodyne techniques.
Observations of the absolute Doppler shift of the emission features
indicated mean zonal wind velocities less than 10 m/s in the upper
atmosphere near the equator. No evidence was found for the 100-m/s wind
velocity implied by the apparent four-day rotation period of ultraviolet
cloud features.

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